You are 39 years old if you were born on September 15, 1984.
You are 39 years 6 months, 1 week, and 6 days old or 474 months old or 2,062 weeks old or 14,439 days old or 346,536 hours old or 20,792,160 minutes old or 1,247,529,600 seconds old You were born on a Saturday.